Abstract: Protective covers for outlet openings of an underfloor access housing are provided to prevent ingress through the outlet opening of a subsequently poured layer of floor fill, such as concrete. The protective covers are enveloped by the floor fill and have upper peripheral edges spaced below the upper surface of the floor fill by up to 13/4 inches (44.5 mm). A release coating is interposed between the protective cover and the floor fill to facilitate separation of the covering floor fill.

Abstract: A protective cover assembly for an outlet opening of an underfloor access housing is provided to prevent ingress through the outlet opening of a subsequently poured layer of floor fill, such as concrete. The assembly comprises a cup-shaped cap having a fence-like vertical extension detachably connected thereto. The assembly is enveloped by the floor fill and has an upper peripheral edge spaced below the upper surface of the floor fill by up to 1 inch (25.4 mm). A release coating interposed between the protective cover assembly and the floor fill facilitates breakout and removal of the overlying layer of floor fill.

Abstract: A method for preparing polymerized products by spraying unsaturated polyester resin syrup, aqueous sodium silicate and a polymerization initiator for the unsaturated polyester resin syrup. The ingredients preferably are formed into sprays which are mixed by impingement. Alternatively the ingredients may be combined into a single spray. These sprays may include inert fillers in spray form. Preferably the sprays are impinged upon inert fillers including chopped fibrous reinforcements such as glass fibers.

Abstract: Polymerizable unsaturated polyester resin syrups can be extended with aqueous alkali metal silicate in compositions containing from 0.1 to 10.0 parts by weight of aqueous alkali metal silicate for each part by weight of the unsaturated polyester resin syrup. The preferred alkali metal silicate is aqueous sodium silicate. Compositions further can be extended (a) by the addition of reactive fillers such as metal oxides or hydrated metallic salts; (b) by the addition of inert fillers such as clay, silica, glass fibers, perlite; or (c) by the addition of both (a) and (b). The fillers also may include fibrous reinforcing materials such as dispersed glass fibers, randomly oriented fiber mats, wound filaments and woven fabrics. The fillers may be present in amounts from about 0.1 to about 5 times the combined weight of aqueous alkali metal silicate and unsaturated polyester resin syrup.The compositions can be employed in coatings, laminates, cast articles, molded articles, or other shaped articles.

Abstract: Apparatus for forming shaped articles from glass fiber reinforced gypsum. An aqueous slurry of calcium sulfate hemihydrate, water and glass fibers contains between 22 and 45 parts by weight water, 100 parts by weight calcium sulfate hemihydrate and 3 to 10 parts by weight glass fiber. The slurry is provided as a continuous ribbon on a moving, water-impermeable first membrane. A water-impermeable second membrane is applied above the continuous ribbon and sealed along its side edges to the side edges of the first membrane to form a sandwich consisting of the two membranes and the slurry ribbon.The sandwich is shaped prior to the setting of the gypsum and is retained in the desired shape until initial setting occurs. Thereafter at least a portion of one of the two membranes is removed and substantially all of the uncombined water is removed from the shaped ribbon.

Abstract: A double-skin building panel having an insulating core and having an outer facing sheet laterally offset from and spaced-apart from an inner facing sheet--each panel presenting an overlapping edge portion along one longitudinal side and an overlapped edge portion along its opposite longitudinal side. The panels are adapted to be erected in lapped relation without externally visible fasteners. The insulating core comprises a honeycomb core member filling a major portion of the space between the facing sheets, and rigid spacing means, one positioned along each side of the panel and thermally insulating the facing sheets from each other. The honeycomb core member presents open ended cells which are substantially entirely filled with an insulating medium, for example, expanded silicate.

Abstract: A wall structure of the double-skin insulated type which spans across at least first and second building frame members. The wall structure comprises a liner sheet positively secured to the second frame member and having a liner sheet end lapping the first frame member; confinement means releasably retaining the liner sheet end to the first frame member; a facing sheet positioned outboard of the liner sheet; and at least two subgirts (a) entirely spaced-apart from the first frame member in the direction of the second frame member and from each other, (b) positioned between the facing sheet and the liner sheet, and (c) each secured to the facing sheet and to the liner sheet.The arrangement is such that the wall structure fails in a particular manner when subjected to abnormally high positive or negative wind pressures of preselected value. The failure load of the wall structure is controlled by the end-subgirt spacing -- the distance between the first frame member and the subgirt adjacent thereto.

Abstract: A double-skin building panel having an insulating core and having an outer facing sheet laterally offset from and spaced-apart from an inner facing sheet -- each panel presenting an overlapping edge portion along one longitudinal side and an overlapped edge portion along its opposite longitudinal side. The panels are adapted to be erected in lapped relation without externally visible fasteners. The insulating core comprises a honeycomb core member filling a major portion of the space between the facing sheets, and rigid spacing means, one positioned along each side of the panel and thermally insulating the facing sheets from each other. The honeycomb core member presents open ended cells which are substantially entirely filled with an insulating medium, for example, expanded silicate.

Abstract: Polymerizable unsaturated polyester resin syrups can be extended with aqueous alkali stabilized colloidal silica in compositions containing from 0.1 to 10.0 parts by weight of aqueous alkali stabilized colloidal silica for each part by weight of the unsaturated polyester resin syrup. The unsaturated polyester resin syrups can be extended further (a) by the addition of reactive fillers such as metal oxides or hydrated metallic salts; (b) by the addition of inert fillers such as clay, silica, glass fibers, perlite; or (c) by the addition of both (a) and (b). The fillers also may include fibrous reinforcing materials such as dispersed glass fibers, randomly oriented fiber mats, wound filaments and woven fabrics. The fillers may be present in amounts from about 0.1 to about 5 times the combined weight of aqueous alkali stabilized colloidal silica and unsaturated polyester resin syrup.The compositions can be employed in coatings, laminates, cast articles, molded articles, or other shaped articles.

Abstract: A gaseous stream is freed of its particulate material in apparatus which includes a casing having an inlet opening, an outlet opening, and an impingement screen disposed across the inlet opening and comprising single or multiple, preferably staggered rows of impingement elements of V-shaped transverse profile positioned with the apex thereof facing the inlet opening. As the gaseous stream flows through the impingement screen, vortices are formed at the trailing edge of each element whereby droplets in the gaseous stream are entrained into the vortices, spin into a low pressure region which exists inside the open rear of the impingement element, and drain by gravity to collecting means. A series of radially extending vanes positioned downstream of the impingement screen impart swirl to the gaseous stream. A series of coaxial frustoconical rings are provided downstream of the vanes. Support means maintain the coaxial frustoconical rings in overlapping arrangement.

Abstract: A closure seal member for capping the perimeter recesses presented between a closure and the surrounding fixed frame assembly. The closure seal member includes a longitudinally rigid support member adapted for interlocking engagement with a frame member of the assembly; and a sealing strip carried at the exterior face of the support member, with a portion thereof positioned to be compressed between the angle member and the closure, and a portion thereof exposed to view. The sealing strip has end portions extending beyond the opposite ends of the support member. At the juncture of adjacent, angularly disposed frame members, the sealing strip end portions of adjacent seal members are engaged to provide a neat corner presentation. The overall length of the support member is less than that of the frame member. Field cutting of metal is avoided.

Abstract: An underfloor access housing adapted for use with cellular flooring units of the type normally placed in building floors, and which provide plural cells separated by troughs. The access housing presents a dual outlet opening in its top wall, spans across a trough, and is secured to the crests of adjacent cells. Trough closures positioned on opposite sides of the access housing, enclose a trough space accessible through the dual outlet opening. Cell access openings provided in the webs of the flooring unit establish communication between the cells and the trough space. A partition divides the interiors of the housing and of the trough space into separate compartments, each including one of the cell access openings and one including the dual outlet opening. The partition is adapted to support at least one electrical plug receptacle whereby electrical connections may be made beneath the level of the finished floor.

Abstract: An electrical trench assembly having a base pan and vertically adjustable side rails. Said side rails being secured to and carried by said base pan by means of adjusting screws, which are carried by said rails and which screw into threaded connections on said pan. The cover plate for the trench assembly is attached to the side rails by resilient fasteners.